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RESEARCH PRODUCT
Thermal lens spectrometric determination of cerium with oxine
M.j.medina HernándezM.c.garcía Alvarez-coqueJ. R. Torres LapasióG.ramis Ramossubject
Detection limitmedicine.diagnostic_testSpectrometerChemistryExtraction (chemistry)Analytical chemistrychemistry.chemical_elementPhotothermal therapyAnalytical ChemistryCeriumLiquid–liquid extractionSpectrophotometryReagentmedicineSpectroscopydescription
Abstract The spectrophotometric and photothermal (TLS) procedures for cerium determination using 8-hydroxyquinoline (oxine), after extraction into chloroform, are compared. Photothermal measurements are made using a coaxial pump/probe thermal lens spectrometer. The use of high-purity reagents at low concentrations permits a decrease in the TLS blank signal and noise, leading to a limit of detection of 9 × 10−9 M (cerium extract concentration), 40-fold lower than the spectrophotometric value. The dynamic range extended up to 6 × 10−7 M and the relative standard deviation for 5 × 10−7 M cerium was 3.9%.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1991-10-01 | Microchemical Journal |